Quick solution to ankle pain? Sprained it this morning.

RICE/POLICE. Rest ice compression elevation. An update mnemonic is protection optimal loading ice compression elevation. The key is active recovery not just staying off it: first, get swelling down (hence rice), then re-establish range of motion, strength, and finally fine-tune agility/high level activities (ol). Physical therapy can help optimize your outcome. See a sports med specialist to get started.
Ice elevate tape. Icing is necessary, elevating keeps swelling down. Tape the ankle or get a stirrup support.